Update 2.11 to 2.12
-------------------
 - Now allow /usr/pkgsrc be symlink.
   The other location of /usr/pkgsrc may be either
    *  symlink from /usr/pkgsrc (since 2.12) or
    *  PKGSRCDIR environment variable (since 2.11)
 - Add -c option only for debug as:
   [-c file_to_check]
   -c  (debug) see if the file is defined in %HASH
   %HASH is internal database for files to handle
